HK

Huan-Chang Kuan

📍 Chunri, TW: #2 of 7 inventorsTop 30%
Overall (2004): #205,838 of 270,089Top 80%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6688806 Jump-proof manhole-handhole — 2004-02-10